Method for safety-oriented control

Abstract

A method for the safety-oriented control of at least one final control element of at least one electrically actuated gas valve, which is switched by means of two relays connected in series, wherein the final control element is activated only if the first relay and the second relay are tripped, wherein a flow of current over the first relay is monitored by a first monitoring device, a flow of current over the second relay is monitored by a second monitoring device, and a control device is programmed in such a way that the final control element is activated by tripping the two relays only if both the first monitoring device and the second monitoring device report to the control device that there is no flow of current before the activation.

Dependencies are inferred from the claim text.